Darke County

Formed 3 Jan 1809 605 square milesParent county: Miami

Evolution of county from date of formation until it assumed its final form3 Jan 1809: Erected and attached to Miami7 Jan 1812: Part of Montgomery attached1 Mar 1817: Organized1 Apr 1820: Mercer and Van Wert attached until organization of Mercer2 Jan 1824: Diminished by organization of Mercer, detaching Van Wert14 Feb 1848: Part attached to MercerCounty seat: GreenevilleFederal Population schedules extant from 1820-1940. (1890 missing)